Added a null check for the bus variable after calling of_match_bus. This prevents potential null pointer dereference errors in subsequent code, where bus->count_cells could cause a crash if bus is NULL. Signed-off-by: Gyeonggeon Choi <gychoi.dev@xxxxxxxxx> --- drivers/of/address.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/of/address.c b/drivers/of/address.c index d669ce25b5f9..85f986d25870 100644 --- a/drivers/of/address.c +++ b/drivers/of/address.c @@ -504,6 +504,8 @@ static u64 __of_translate_address(struct device_node *node, if (parent == NULL) return OF_BAD_ADDR; bus = of_match_bus(parent); + if (bus == NULL) + return OF_BAD_ADDR; /* Count address cells & copy address locally */ bus->count_cells(dev, &na, &ns); -- 2.39.3 (Apple Git-146)
